/* eslint-disable vue/no-unused-vars */
<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>列表管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片区域 -->
    <el-card>
      <el-row :gutter="10">
        <el-col :span="8">
          <!-- 搜索区域 -->
          <el-input placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getGoodsList">
            <el-button slot="append"
              icon="el-icon-search"
              @click="getGoodsList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddpage">添加商品</el-button>
        </el-col>
      </el-row>
    </el-card>
    <!-- 商品表格区域 -->
    <el-table :data="goodsList"
      style="width: 100%"
      stripe
      border>
      <el-table-column type="index"
        label="#"></el-table-column>
      <el-table-column prop="goods_name"
        label="商品名称"></el-table-column>
      <el-table-column prop="goods_price"
        label="商品价格(元)"
        width="70px"></el-table-column>
      <el-table-column prop="goods_weight"
        label="商品重量"
        width="70px"></el-table-column>
      <el-table-column prop="add_time"
        label="创建时间"
        width="140px">
        <!--通过作用域插槽的形式 调用时间过滤器-->
        <template slot-scope="scope">
          {{scope.row.add_time | dateFormat}}
        </template>
      </el-table-column>
      <el-table-column label="操作"
        width="130px">
        <!-- eslint-disable-next-line vue/no-unused-vars -->
        <template slot-scope="scope">
          <!--修改按钮-->
          <el-button type="primary"
            size="mini"
            icon="el-icon-edit"
            @click="showEditDialog(scope.row.goods_id)"></el-button>
          <!--删除按钮-->
          <el-button type="danger"
            size="mini"
            icon="el-icon-delete"
            @click="removeById(scope.row.goods_id)"></el-button>
        </template>
      </el-table-column>
    </el-table>

    <!-- 商品分页区域 -->
    <el-pagination @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum"
      :page-sizes="[10, 20, 30, 50]"
      :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total"
      background>
    </el-pagination>

    <!--编辑参数的对话框-->
    <el-dialog title="编辑商品"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialogClosed">
      <!--内容主体区域-->
      <el-form :model="editForm"
        :rules="editFormRules"
        ref="editFormRef"
        label-width="90px">
        <el-form-item label="商品名称"
          prop="goods_name">
          <el-input v-model="editForm.goods_name"></el-input>
        </el-form-item>
        <el-form-item label="商品价格"
          prop="goods_price">
          <el-input v-model="editForm.goods_price"></el-input>
        </el-form-item>
        <el-form-item label="商品数量"
          prop="goods_number">
          <el-input v-model="editForm.goods_number"></el-input>
        </el-form-item>
        <el-form-item label="商品重量"
          prop="goods_weight">
          <el-input v-model="editForm.goods_weight"></el-input>
        </el-form-item>
        <el-form-item label="商品介绍"
          prop="goods_introduce">
          <el-input v-model="editForm.goods_introduce"></el-input>
        </el-form-item>
      </el-form>
      <!--底部按钮区域-->
      <span slot="footer"
        class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary"
          @click="editGoods">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data () {
    return {
      // 查询商品列表数据参数
      queryInfo: {
        query: '', // 搜索查询参数
        pagenum: 1, // 当前页码
        pagesize: 10 // 当前每页显示条数
      },
      goodsList: [], // 商品列表
      total: 0, // 商品总数
      // 控制对话框的显示和隐藏
      editDialogVisible: false,
      // 编辑商品的表单数据对象
      editForm: {
        goods_name: '',
        goods_price: null,
        goods_number: null,
        goods_weight: null,
        goods_introduce: '',
        goods_cat: []
      },
      // 编辑商品的验证规则
      editFormRules: {
        goods_name: [
          { required: true, message: '请输入商品名称', trigger: 'blur' }
        ],
        goods_price: [
          { required: true, message: '请输入商品价格', trigger: 'blur' }
        ],
        goods_number: [
          { required: true, message: '请输入商品数量', trigger: 'blur' }
        ],
        goods_weight: [
          { required: true, message: '请输入商品重量', trigger: 'blur' }
        ]
      }
    }
  },
  created () {
    // 获取商品列表数据
    this.getGoodsList()
  },
  methods: {
    // 根据分页获取对应的商品列表
    async getGoodsList () {
      const { data: res } = await this.$http.get('goods', { params: this.queryInfo })
      if (res.meta.status !== 200) {
        return this.$message.error('获取商品列表失败')
      }
      // console.log(res.data)
      this.goodsList = res.data.goods
      this.total = res.data.total
    },
    // 监听 pageSize 改变的事件
    handleSizeChange (newSize) {
      console.log(newSize)
      this.queryInfo.pagesize = newSize
      this.getGoodsList()
    },
    // 监听 当前页码值 改变的事件
    handleCurrentChange (newPage) {
      console.log(newPage)
      this.queryInfo.pagenum = newPage
      this.getGoodsList()
    },
    // 删除按钮
    async removeById (id) {
      const confirmResult = await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      console.log(confirmResult)
      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      const { data: res } = await this.$http.delete(`goods/${id}`)
      if (res.meta.status !== 200) {
        return this.$message.error('删除商品失败！')
      }
      this.$message.success('删除商品成功！')
      this.getGoodsList()
    },
    // 编辑按钮展示对话框
    async showEditDialog (id) {
      const { data: res } = await this.$http.get('goods/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('查询角色信息失败')
      }
      this.editForm = res.data
      console.log(this.editForm)
      this.editDialogVisible = true
    },
    // 关闭对话框重置表单内容
    editDialogClosed () {
      this.$refs.editFormRef.resetFields()
    },
    //  点击确认 编辑修改商品
    async editGoods () {
      this.$refs.editFormRef.validate(async valid => {
        // console.log(valid)
        if (!valid) return
        // 可以发起修改商品信息的网络请求
        const { data: res } = await this.$http.put(
          'goods/' + this.editForm.goods_id,
          {
            goods_name: this.editForm.goods_name,
            goods_price: this.editForm.goods_price,
            goods_number: this.editForm.goods_number,
            goods_weight: this.editForm.goods_weight,
            goods_introduce: this.editForm.goods_introduce,
            goods_cat: this.editForm.goods_cat
          }
        )
        if (res.meta.status !== 200) {
          return this.$message.error('修改商品信息失败！')
        }
        this.$message.success('修改商品信息成功！')
        // 关闭对话框
        this.editDialogVisible = false
        // 重新发起请求商品列表
        this.getGoodsList()
      })
    },
    // 编程式导航跳转到商品添加页面
    goAddpage () {
      this.$router.push('/goods/add')
    }
  }
}

</script>

<style lang="less" scoped>

</style>
